MalwareRansomwareRansom DemandedData EncryptedIDENTITY_BASICIDENTITY_GOVERNMENTMediumContained
MCLAREN HEALTH CARE CORPORATION
bd_16315e097bb33c70 · schema v1 · pii pii-v1
Full breach record for MCLAREN HEALTH CARE CORPORATION →McLaren Health Care notified Vermont AG of a ransomware attack impacting patient networks between July 17 and August 3, 2024. The attack targeted McLaren and Karmanos systems. Data potentially exposed includes names and government identifiers. McLaren engaged forensic investigators, secured the network, and is offering identity theft protection services to affected individuals.
Vermont clock✗ VT AG >45 bday46 weeks discovery → filing
⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
This filing is one of 6 about the same incident.View merged incident
A leak claim by alphv about this victim predates this filing by 629 days.View originating leak claim
Linked disclosures
Why this link?Regulatory filings (5) · sorted by filing gap
- bd_277031208ce9f1ecNew Hampshire State AGfiled 2025-06-20Verified
- bd_5ca789ddf9c80c46Indiana State AGfiled 2025-06-20Verified
- bd_e56983ab307e3088Maine State AGfiled 2025-06-20Verified
- bd_290c029e46920846HHS OCRfiled 2025-06-24(4d gap)Verified
Show 1 more filing ↓Show fewer ↑up to 10d gap
- bd_1484ed8400263435Texas State AGfiled 2025-06-30(10d gap)Verified
Source provenance
- Source URL
- https://ago.vermont.gov/document/2025-06-20-mclaren-health-care-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jun 20, 2025
- Raw hash
- 2b951bd1d084d774ba046fa3993b8efdfa61946cb9379666c663569cfd397c6a
Reporting entity
- Name
- MCLAREN HEALTH CARE CORPORATIONnorm: mclaren health care
- Domain
- mclaren.org
Victim entity
- Name
- MCLAREN HEALTH CARE CORPORATIONnorm: mclaren health care
- Domain
- mclaren.org
Incident
- Discovered
- Aug 5, 2024
- Materiality determined
- —
- Notification sent
- Jun 20, 2025
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICIDENTITY_GOVERNMENT
- Attack vector
- Ransomware
- MITRE ATT&CK
- T1486 Data Encrypted for ImpactT1190 Exploit Public-Facing Application
- Threat actor
- ExternalFinancial
- Regulator citations
- Notice has not been delayed by law enforcement
- Initial access
- exploit_public_facing
Compliance
- Time to disclose
- 46 weeks(319 days from discovery to filing)
- Compliance flags
- VT AG >45 bdayLeak >180d
- Discovery-date grounding
- unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.